Shake Shack is one of the new generation hamburger chains eating up McDonald's Amtrack snack bar food or even the old 7-11's microwave burgers. Sometime last year I ranked all of hamburger chains based on ratings/reviews:Shake Shack's initial public offering priced well above expectations at $21 apiece, netting the burger chain a valuation of $745M. Underwriters had set an expected price range of $17-$19 per share, up from an initial $14-$16 due to strong demand. Shake Shack (Pending:SHAK) will begin trading on the NYSE this morning.
Burgerfi
Five Guys
Cheeburger Cheeburger
In-N-Out
Smashburger
The Burger Joint
Shake Shack
Checkers
Fatburger
Red Robin
Wendy's
McDonald's
Sonic
Jack in the Box
Culver's
Whataburger
Johnny Rockets
Carls Jr/Hardees
Burger King
I'd say the dividing line is between Wendy's and McDonald's; presumably between fresh vs frozen. Note that in some cases a location specific outlet can be badly operated and not representative of a chain's overall ranking. I admit I'm a little surprised at Carl's Jr/Hardees being so low. No surprise on Burger King at all.
I know Red Robin has a gluten-free hamburger bun (with egg). Low-carbing it with wet lettuce just does not hit the spot.